Floor Mount Bulkhead Fit DBW Accelerator Pedal Box

£ 724.80

Category Pedal box

Professional Race (PRO-RACE) 3 Pedal, Electronic DBW Accelerator, Hydraulic Clutch, Brake Bias Performance Pedal Box.

Part Number: OBP7PRDBW2.

Kit Contents: PRO-RACE 3 Pedal Hydraulic Clutch Pedal Box with 1x Linear Twin Potentiometer, Bias Bar, 3x Master Cylinders & Bias Adjuster.

You will receive the NEW V.2 version of this pedal box that will have full Aluminium Billet pedals.

Mounting Location: Floor Mounted Bulk Head Fit.

Pedals: Billet Aluminium

Pedal Ratio: 4.9:1 to 5.24:1.

Weight: 5.8 lbs (2.6 Kg) * (With Bias Bar, without Master Cylinders).

Approx Dimensions: Width 260mm, Pedal Height 280mm, Box Depth 140mm, Depth Including Master Cylinders 250mm.

Optimum Balance Products Ltd (obp Ltd) PRO-RACE range of pedal boxes are proving to be very popular with race teams world wide.

These pedal boxes represent a major step forward in car control, giving the driver better feel, greater dexterity and the most important bit .

The PRO-RACE range is lightweight, flexible and ergonomically efficient.

All 3 pedals pivot on oil impregnated bushes, giving an incredible smooth motion with very little maintenance.

Special Features Pro-Race V2 Pedal Boxes:

  • Aircraft Grade Aluminium Billet Pedals
  • Adjustable Brake Pedal Ratio
  • Adjustable Up, Down and side to Side Pedal Pads
  • Responsive Accelerator Spring Return
  • Adjustable Accelerator Stop
  • Adjustable Clutch Overthrow Stop
  • Strengthened and Rigid Box
  • Fully Adjustable Brake Bias / Balance System
  • DBW Electronic Accelerator Upgrade
  • 12 Month Warranty

The new and original obp Pro-Race V2 Aluminium Billet Pedal Box with Adjustable Brake Bias for Race, Rally or Drift Cars has an exciting feature built in to them.

The special feature is an adjustable pedal ratio, the pedal ratio is what creates the force to the master cylinder.

If you press the brake pedal with a force of 100 pounds, your master cylinder will see a multiplied force based on the pedal ratio. For example, if you havd a brake pedal with a 5:1 (5 to 1) ratio and exrted 100 pounds of pressure at the pad, the force at the master cylinder will be 500 pounds.

With the obp Pro-Race V2 pedal boxes you can adjust this ratio with ease and simplicity by moving the pedal pad up or down.

This Linear Potentiometer is designed to withstand the harsh environment in a Motorsport applications. Using proven ‘conductive plastic’ technology, the sensors offer high performance and reliability.


  • Maximum Supply Voltage – 40 VDC,
  • Resolution – Essentially Infinite,

  • Repeatability - 

  • Operational Speed - 10 M/s max,
  • Mechanical Life - 
> 25 Million Cycles,
  • Recommended Wiper Current - 
< 10μA,
  • Independent Linearity - 
≤ +/- 0.5%

Connection & Output Details

6 Core Cable

Track 1

  • Red = +V
  • Black = 0V
  • Yellow = Signal

Track 2

  • Brown = +V
  • Blue = 0V
  • White = Signal


  • Fully Closed = +Vmax
  • Fully Open = 0V

The displacement signals may be reversed by swapping the connections to the Red & Black wires or Brown & Blue wires, providing +Vmax output when Full Open & 0V when fully closed.

DO NOT connect +V supply to the Yellow and White (signal) wires, as this may cause damage to the sensor element.

This Pedal Box is designed to be used with a bulkhead. If you are not using a bulkhead then the strength plate OBP0099PR must be used.